Fixed Ball Valves

What Are Fixed Ball Valves?
A fixed ball valve uses bearing-supported trunnion components to hold the ball in position. Unlike floating ball designs, the torque response may be less sensitive to downstream ball loading than a floating design, but it remains dependent on differential pressure, seat load, materials, bearings and the offered configuration. This makes fixed ball valves suitable for larger sizes and higher pressure classes where floating ball designs would require higher operating torque.
Honiks is a factory-backed industrial valve supplier in China with access to qualified partner factories for fixed ball valve production. See HN106 Fixed Ball Valve for catalog reference data covering Class 150-2500 configurations, with fire-safe and anti-static design references.

Key Features

Trunnion-mounted fixed ball design for stable operation at higher pressure classes.
Torque response may be less sensitive to downstream ball loading than a floating design; confirm the offered configuration and actuator calculation.
Suitable for larger sizes where floating ball designs would require higher torque.
Fire-test reference: API 607 or ISO 10497 may be specified when required by the project; confirm the offered configuration, test scope and documentation before quotation.
Anti-static device, blow-out resistant stem and injection options available.
Full bore or reduced bore, with handle, worm gear or automated actuation.

Related Categories

Ball Valves — Floating and fixed ball valves
API Valves — API-referenced industrial valves
ANSI Valves — All ANSI-referenced valves

Frequently Asked Questions
When should I choose a fixed ball valve over a floating ball valve?
Fixed ball valves are typically selected for larger sizes and higher pressure classes where a floating ball design would require higher operating torque. The trunnion support may help keep torque manageable in suitable sizes and pressure classes; confirm differential pressure, seat arrangement and actuator sizing for the offered valve.
Are fixed ball valves available with fire-safe design?
Yes, a fire-tested configuration may be specified against API 607 or ISO 10497 when required by the project. Confirm the offered configuration, test scope and documentation before quotation.
For selection guidance between gate and ball valve types, read our API gate valve vs ball valve selection guide.
Related Technical Guide: API valve types guide.

For projects comparing HN106 with smaller floating ball valve options, use the floating ball valve vs fixed ball valve guide as a selection reference.